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CSE 636 Data Integration Datalog Rules / Programs / Negation Slides by Jeffrey D. Ullman * “The head is true if all the subgoals are true.” Review of Logical If-Then…
CSE 636 Data Integration SchemaSQL Implementation * Architecture DBMSn DBMS1 Resident SQL Engine SchemaSQL Server Federation User SchemaSQL Query Final Answer Answers…
CSE 636 Data Integration SchemaSQL * Motivation Multi-Database Interoperability Resolve data/metadata conflicts Provide for schema restructuring A compelling need in XML…
CSE 636 Data Integration Answering Queries Using Views MiniCon Algorithm * The MiniCon Algorithm Concentrate on variables rather than subgoals to create MiniCon Descriptions…
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CSE 636 Data Integration Schema Matching Cupid Fall 2006 * Virtual Integration Architecture Mediator Data Source Data Source Global Schema Local Schema Local Schema Query…
CSE 636 Data Integration Data Integration Approaches Fall 2006 * Virtual Integration Architecture Leave the data in the sources When a query comes in: Determine the relevant…
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CSE 636 Data Integration Web Services * What is a Web Service Network A web service is a network accessible interface to application functionality Application interoperability…
CSE 636 Data Integration Overview Fall 2006 * What is Data Integration? The problem of providing uniform (sources transparent to user) access to (query, and eventually updates…
CSE 636 Data Integration XML Semistructured Data Document Type Definitions * Semistructured Data Another data model, based on trees Motivation: flexible representation of…
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CSE 636 Data Integration Answering Queries Using Views Bucket Algorithm * Each subgoal g of Q must be “covered” by some view Make a list of candidates (buckets) per query…
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CSE 636 Data Integration Overview * Data Warehouse Architecture Data Source Data Source Relational Database (Warehouse) Data Source Users Applications OLAP / Decision…
CSE 636 Data Integration Limited Source Capabilities Slides by Hector Garcia-Molina * Heterogeneous Databases data DBMS1 data DBMS2 data legacy data web site Distributed…
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